Lift or elevator



(No Model.).

, B.- KRAUSE.

LIFT 0R ELEVATOR. No. 296,582. Patented Apr. 8, 1884.

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w a m is a s WITNESSES: 1 Q mVENTOR. fizz? zwfl; ATTORNEYS.

a. ram Pfwlo-Llmngnphlr, Wuhingmn. n. c

UNiTnn Srnrns' nrnwr written,

EARNEST KRAUSE, OF EL PASO, TEXAS.

LIFT OR ELEVATOR.

SPECIEICATION forming, part of Letters Patent No. 296,582, dated April8, 1884.

Application filed February 2'1, 1384. (No model.)

To all whom it may concern.-

Be it known that I, Eiinnnsr Kai-toss, a citizen of the United States,and a resident of El Paso, in the county of El Paso and State of Texas,have invented certain new and useful Improvements in Lifts or Elevators;and I do hereby declare that thefollowing is afull, clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, which form a part of this specification,and in which Figure 1 is a side elevation of so much of the operatingmechanism of a lifter or elevator as is necessary to illustrate myinvention; and Fig. 2 is a cross-section, on an enlarged scale, throughshaft H and the sliding sleeve G on line a: (I? in Fig. 1.

Similar letters of reference indicate corre sponding parts in both thefigures.

My invention has relation to vertical railways, or so-called lifts orelevators, and is applicable more especially to elevators used inwarehouses and freight-depots for transporting merchandise from or tothe several stories.

My improvement consists in the construction of the operating .mechanism/as hereinafter more fully described and claimed, whereby the mechanismmay be regulated or adjusted to run fast or slow, according to the 7weight of the load to be carried, it being adjusted to run slow, butwith great power, when heavy loads are to be lifted, but to run fast,but with lesser power, when lighter loads are to be lifted.

In the accompanying drawings, a a denote two of the standards of theelevator-well or frame, having boxes I; b, in which the shaft L isjournaled, and boxes 0 c, in which shaft H is journaled. Fastened atopposite sides of the upper shaft, L, are grooved wheels or pulleys A A,over which the rope is carried that raises the platform on oneside andits balance-weight or counterpoise on the other. Upon shaft L are alsofastened the large cog-wheel D and a smaller cog-wheel, E. The lowershaft, H, is constructed with a spline, it, and upon it slides a sleeve,G, which is recessed or grooved to fit over the spline h, so that whenshaft H is rotated sleeve G will turn with it. Upon sleeve G, which isfree to slide forward and back upon shaft H, is fastened the pinion 0,adapted to gear with or intermesh with the large cog-wheel D and acog-wheel, F, which is adapted to gear or interinesh with cog-wheel Eupon shaft L. At one end shaft G is out to form the worm or spiral G,which meshes with the worm-wheel M, fixed upon a shaft, P, which has itshearings in the box (2 on one of the frame-pieces a, and box 6 at thelower end of the hanger R. Upon the outer end of shaft 1 is fastened thesheave or pulley K, around which a rope, N, passes, reaching down to.the ground floor or to the basement of the building in which theelevator is located. Upon one end of shaft H is fastened the drum orpulley B, around which the hoisting-rope 0 passes, by means of which theplatform is hoisted up or down.

From the foregoing description, taken in connection with the drawings,the operation of this mechanism will readily be understood. When theseveral parts are in their relative position shown in the drawings-t. a,the pinion 0 meshing with the large cog-wheel Dthe platform will moveslowly up or down, but will carry avery heavy load, on account of theleverage between pinion G and thelarge wheel D. If, however, smallerloads are to be lifted, the sheave K is rotated by pulling on theendless rope N, which rotates shaft 1? and the worm-wheel M, therebysliding sleeve Gupon shaft H in the direction of the arrow untilcogwheel F gears with cog-wheel E on shaft L, at the same timedisengaging the pinion C from cog-wheel D; \Vhen the parts are in thisposition, shaft L will be rotated considerably faster, thus raising theload placed upon the platform in much less time, but with a propontionately decreased leverage. If desired,shaft H may be provided with acollar or stop, a, which will stop further motion of the sliding sleeveG when the wheels E and F have been brought into the proper position togear or interinesh with each other.

attached, and the gear-wheels D and E, of clif- In testimony that Iclaim the foregoing as ferent diameters, shaft H, having spline h, andmy own I have hereunto aflixed my signature pulley B, carrying thehoisting-rope which opin presence of two witnesses.

erates the mechanism, sliding sleeve G, pro 5 vided with pinion O andcog-wheel F, and having the Worm G, shaft P, having Worm-Wheel EARNESTKRAUSE.

M, engaging the worm G, and means for rotat- Vitnesses: ing shaft P, thewhole constructed and com- VESTAL H. COFFIN, bined to operatesubstantially as and for the DAVID M. HIOKMANY 1o purpose shown and setforth.

